Finding the Fourth Proportional to 76,348.26, 105,358.63 and 42,356.58
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Solution
The fourth proportional to 76,348.26, 105,358.63 and 42,356.58 is: 58,450.99
Step by Step Solution
- Step 1: Write the proportion equation
76,348.26 : 105,358.63 = 42,356.58 : x - Step 2: Convert to fraction form
76,348.26/105,358.63 = 42,356.58/x - Step 3: Cross multiply
76,348.26x = 105,358.63 × 42,356.58 - Step 4: Simplify right side
76,348.26x = 4,462,631,240.29 - Step 5: Solve for x
x = 4,462,631,240.29/76,348.26 - Step 6: Final answer
x = 58,450.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.